DE2604807A1 - Joining system for telescopic tubular assembly - has tubes joined end to end by tangential pin - Google Patents
Joining system for telescopic tubular assembly - has tubes joined end to end by tangential pinInfo
- Publication number
- DE2604807A1 DE2604807A1 DE19762604807 DE2604807A DE2604807A1 DE 2604807 A1 DE2604807 A1 DE 2604807A1 DE 19762604807 DE19762604807 DE 19762604807 DE 2604807 A DE2604807 A DE 2604807A DE 2604807 A1 DE2604807 A1 DE 2604807A1
- Authority
- DE
- Germany
- Prior art keywords
- rod
- pin
- groove
- inner rod
- flat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000011152 fibreglass Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
- F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/20—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using bayonet connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
Kupplung für Teleskopstangen aus Kunststoff Coupling for telescopic rods made of plastic
Die Erfindung betrifft eine Kupplung für Teleskopstangen aus Kunststoff, insbesondere für Betätigungs- und Erdungsstangen für elektrische Schaltanlagen.The invention relates to a coupling for telescopic rods made of plastic, in particular for operating and earthing rods for electrical switchgear.
Solche Stangen größerer Länge werden durch teleskopartiges Ineinanderstecken mehrerer Innen- und Außenstangen gebildet.Such rods of greater length are telescoped into one another formed several inner and outer bars.
Bekannt ist es, eine Außenstange und eine Innenstange mittels einer Bajonettkupplung zu verbinden. Die Ausbildung einer solchen Baäonettkupplung ergibt bei Kunststoffrohren Schwierigkeiten, da die Stange radial durchsetzende Stifte oder Bolzen in der relativ schwachen Wand nicht sicher festgelegt werden können.It is known to have an outer rod and an inner rod by means of a To connect bayonet coupling. The formation of such a Baäonettkupplung results Difficulties in the case of plastic pipes, as pins penetrate the rod radially or bolts in the relatively weak wall cannot be securely set.
Der Erfindung liegt die Aufgabe zugrunde, eine einfache, billige und sichere Kupplung zu schaffen, die vollständig aus Kunststoff besteht. Zur Lösung sieht die Erfindung vor, daß die Wand der Außenstange ein Querstift tangential derart durchsetzt, daß er etwas in den Innenraum der Außenstange hineinragt,und daß die Innenstange am Außenumfang an einer Seite eine Abflachung aufweist, die dem überstand des Querstifts in den Innenraum der Außenstange angepaßt ist und an die sich eine Nut längs des Umfangs der Innenstange mit abnehmender Tiefe anschließt. Die erfindungsgemäße Ausführung ermöglicht eine sichere Festlegung des Querstifts, da dieser wegen seiner tangentialen Anordnung fast vollständig von dem Material der Wand der Außenstange umfaßt wird.The invention is based on the object of a simple, cheap and to create a secure coupling that is made entirely of plastic. To the solution the invention provides that the wall of the outer rod has a transverse pin tangentially in this way interspersed that it protrudes somewhat into the interior of the outer rod, and that the Inner rod on the outer circumference has a flat on one side that protruded from it of the cross pin is adapted into the interior of the outer rod and to which one Groove along the circumference of the inner rod adjoins with decreasing depth. The inventive Execution enables a secure definition of the cross pin, as this because of its tangential Arrangement is almost completely covered by the material of the wall of the outer rod.
Die erfindungsgemäße Kupplung hat durch die abnehmende Tiefe der Umfangsnut in der Innenstange, in der sich der Querstift der Außenstange verschiebt, eine selbsthemmende Wirkung.The coupling according to the invention has the decreasing depth of the circumferential groove in the inner rod, in which the cross pin of the outer rod moves, a self-locking one Effect.
Obwohl die Teile der Kupplung nach außen überhaupt nicht in Erscheinung treten, wird auch der freie Innenraum nicht beeinträchtigt, was dann von Bedeutung ist, wenn die Stange zusätzlich zur Durchleitung bestimmter Mittel ausgenutzt werden soll.Although the parts of the clutch are outwardly not at all apparent step, the free interior space is not impaired, which is important is when the bar is also used for the passage of certain funds target.
Bei besonders dünnen Stangen kann es zweckmäßig sein, die Außenstange im Bereich des Querstifts mit einem Verstärkungsring zu versehen, um die durch die Bohrung für den Querstift hervorgerufene Schwächung auszugleichen.In the case of particularly thin rods, it can be useful to use the outer rod to be provided in the area of the cross pin with a reinforcing ring to prevent the Hole for the cross pin to compensate for the weakening.
Aus demselben Grund können auch die Abflachung und die Umfangsnut in einer auf der Innenstange sitzenden Hülse angebracht sein.For the same reason, the flattening and the circumferential groove be mounted in a sleeve seated on the inner rod.
Die Erfindung wird beispielhaft anhand der Zeichnung beschrieben, in der sind Fig. 1 eine perspektivische Ansicht der sich gegenüberstehenden Enden der Außenstange und der Innenstange im Abstand voneinander, Fig. 2 ein Längsschnitt durch die Enden der Außenstange und der Innenstange im Bereich der Kupplung und Fig. 3 ein Querschnitt durch die Kupplung.The invention is described by way of example with reference to the drawing, In Fig. 1, Fig. 1 is a perspective view of the opposite ends the outer rod and the inner rod at a distance from one another, FIG. 2 is a longitudinal section through the ends of the outer rod and the inner rod in the area of the coupling and 3 shows a cross section through the coupling.
Die erfindungsgemäße Kupplung dient zum Verbinden der Innenstange 1 und der Außenstange 4. Die Innenstange ist am Außenumfang an einer Seite mit einer Abflachung 7 versehen, an die sich eine Umfangsnut 8 mit abnehmender Tiefe anschließt. Die Außenstange 4 ist tangential von einem Querstift 6 durchsetzt, der in der Höhe der Abflachung 7 der Innenstange in den Innenraum der Außenstange hineinragt. Im Bereich des Querstifts 6 ist die Außenstange mittels eines Rings 5 verstärkt. Ein gleichförmiger Ring 2 auf der Innenstange 1 dient als Dichtungsanschlag, wofür an der Stirnseite der Außenstange 4 ein Dichtschnurring 3 eingesetzt ist.The coupling according to the invention is used to connect the inner rod 1 and the outer rod 4. The inner rod is on the outer circumference on one side with a Flattened 7 provided, to which a circumferential groove 8 connects with decreasing depth. The outer rod 4 is penetrated tangentially by a transverse pin 6, which in height the Flattening 7 of the inner rod in the interior of the outer rod protrudes. In the area of the cross pin 6, the outer rod is by means of a ring 5 reinforced. A uniform ring 2 on the inner rod 1 serves as a sealing stop, for which purpose a sealing cord ring 3 is used on the end face of the outer rod 4.
Die erfindungsgemäße Kupplung arbeitet in der Weise, daß die Innenstange und die Außenstange in Richtung des Pfeils 9 in Fig. 1 derart zusammengesteckt werden, daß der Querstift 6 der Außenstange 4 auf die Abflachung 7 der Innenstange 1 aufläuft. Wenn der Querstift 6 an das Ende der Abflachung 7 anschlägt, werden die Stangen zueinander in Richtung des Pfeils 10 in Fig. 1 gedreht, wobei der Querstift 6 in der Umfangsnut 8 läuft. Aufgrund der abnehmenden Tiefe der Umfangsnut verklemmt sich allmählich der Stift 6, wodurch die Kupplung selbst sperrt. Die Außenstange und die Innenstange bestehen vorzugsweise aus Polyesterharz, während der Querstift vorzugsweise aus glasfaserverstärktem Kunststoff (GFK) besteht.The coupling according to the invention works in such a way that the inner rod and the outer rod are plugged together in the direction of arrow 9 in Fig. 1 in such a way that that the cross pin 6 of the outer rod 4 runs onto the flat 7 of the inner rod 1. When the cross pin 6 strikes the end of the flat 7, the rods rotated to each other in the direction of arrow 10 in Fig. 1, the cross pin 6 in the circumferential groove 8 runs. Jammed due to the decreasing depth of the circumferential groove gradually the pin 6, whereby the clutch locks itself. The outside pole and the inner rod are preferably made of polyester resin, while the cross pin preferably made of glass fiber reinforced plastic (GRP).
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762604807 DE2604807A1 (en) | 1976-02-07 | 1976-02-07 | Joining system for telescopic tubular assembly - has tubes joined end to end by tangential pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762604807 DE2604807A1 (en) | 1976-02-07 | 1976-02-07 | Joining system for telescopic tubular assembly - has tubes joined end to end by tangential pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2604807A1 true DE2604807A1 (en) | 1977-09-01 |
Family
ID=5969297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762604807 Pending DE2604807A1 (en) | 1976-02-07 | 1976-02-07 | Joining system for telescopic tubular assembly - has tubes joined end to end by tangential pin |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2604807A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0197249A1 (en) * | 1985-03-06 | 1986-10-15 | GebràDer Sulzer Aktiengesellschaft | Bayonet-like coupling for connecting two hollow tubular parts |
| WO2010112434A1 (en) * | 2009-04-03 | 2010-10-07 | Dohle Extrusionstechnik Gmbh | Hand welding extruder |
| IT201700040043A1 (en) * | 2017-04-11 | 2018-10-11 | Giovanni Famulari | System for mounting removable elements. |
-
1976
- 1976-02-07 DE DE19762604807 patent/DE2604807A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0197249A1 (en) * | 1985-03-06 | 1986-10-15 | GebràDer Sulzer Aktiengesellschaft | Bayonet-like coupling for connecting two hollow tubular parts |
| WO2010112434A1 (en) * | 2009-04-03 | 2010-10-07 | Dohle Extrusionstechnik Gmbh | Hand welding extruder |
| IT201700040043A1 (en) * | 2017-04-11 | 2018-10-11 | Giovanni Famulari | System for mounting removable elements. |
| WO2018189759A1 (en) * | 2017-04-11 | 2018-10-18 | Giovanni Famulari | System for assembling removable elements |
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